Does Islamic law allow men to get away with rape? If a woman brings an accusation of rape against a man and is unable to prove that she was forced, will she be charged with fornication/adultery? Istighfirallah, this is the state of affairs under the law in some Muslim countries.
It is not, however, what Islamic law really says. Rape is a crime of hiraba not of fornication. I have posted previously about hiraba.
Please read Her Honor: An Islamic Critique of the Rape Laws of Pakistan by Asifa Quraishi to learn more about this issue. The article is far too long for me to post it up here, but it is well worth reading, if you wish to see how Islamic scholars have actually treated the issue.
As a side note, in Islamic law, a woman who kills her rapist has committed a lawful act of self-defense and will not be charged with homicide. If she dies while fighting her rapist, she is considered a martyr (source)